The old Jensen bullets (J-26) were a bonded jacketed bullet, and the best bullet you could buy at the time. The new Lost River Ballistic are a turned copper/bronze alloy bullet. Reviews are mixed. Their bread and butter bullets right now are tactical
One of the reason you haven't heard from Warren is that turned up M.I.A. from LRB a couple of years ago, including allegations of missing funds and the whole bit. One of the lady partners is in charge of the place, now. FWIW, Dutch.